I'm sure you already know about Unitarian Universalists for Polyamory Awareness
, but they have a course called Love Makes a Family
and various pieces of literature you can download from this page (scroll down to see all): http://uupa.org/Literature/LoveMakesAFamily.htm
. You can also try PM'ing forum user jasminegld
, who is very involved with UUPA. And yes, there is a long thread about the UUPA in the Spirituality forum here.